Open Access
Issue |
ND 2007
2007
|
|
---|---|---|
Article Number | 103 | |
Number of page(s) | 4 | |
Section | Fission studies | |
DOI | https://doi.org/10.1051/ndata:07735 | |
Published online | 17 June 2008 |
International Conference on Nuclear Data for Science and Technology 2007
DOI: 10.1051/ndata:07735
1 EC-JRC-IRMM, 2440 Geel, Belgium
2 Forschungszentrum Karlsruhe, Institute für Reaktorsicherheit, 76344 Eggenstein-Leopoldshafen, Germany
nikolai.kornilov@ec.europa.eu
Published online: 21 May 2008
© CEA 2008
DOI: 10.1051/ndata:07735
New experimental and theoretical results for the 235U fission neutron spectrum
N.V. Kornilov1, F.-J. Hambsch1, I. Fabry1, S. Oberstedt1 and S.P. Simakov21 EC-JRC-IRMM, 2440 Geel, Belgium
2 Forschungszentrum Karlsruhe, Institute für Reaktorsicherheit, 76344 Eggenstein-Leopoldshafen, Germany
nikolai.kornilov@ec.europa.eu
Published online: 21 May 2008
Abstract
The prompt fission neutron spectrum (PFNS) was measured at 0.5 MeV incident neutron energy. An angular anisotropy in the prompt neutron emission was found. The neutron yield is ~10% higher and the average energy ~80 keV smaller at 90 degree than at 120 degree neutron emission angle. The spectral difference diminishes with increasing prompt neutron energy. The experimental data were successfully described with the semi-empirical "three sources" model.
© CEA 2008